Ignore spaces
[mms] Add Horde_String_Normalize class.
[mms] Fix stripping non-ASCII characters in Horde_Imap_Client_Data_Format_Atom#stripNonAtomCharacters().
[mms] Support non-ASCII characters in user-defined flag names (Request #12335).
Catch fatal errors and log them
Add IMP_Flag_Base->hash property
Fix setting flag on message when creating via context menu